<template>
    <div :class="className" :id="id" :style="{height:height,width:width}"/>
</template>

<script>
import echarts from 'echarts'
import resize from '@/mixins/chartResize'

export default {
    mixins: [resize],
    props: {
        className: {
            type: String,
            default: 'chart'
        },
        id: {
            type: String,
            default: 'chart'
        },
        width: {
            type: String,
            default: '200px'
        },
        height: {
            type: String,
            default: '200px'
        },
        options: {
            type: Object,
            require: true
        }
    },
    data() {
        return {
            chart: null
        }
    },
    watch: {
        options: {
            handler(options) {
                this.chart.setOption(this.options)
            },
            deep: true
        }
    },
    mounted() {
        this.initChart()
    },
    beforeDestroy() {
        if (!this.chart) {
            return
        }
        this.chart.dispose()
        this.chart = null
    },
    methods: {
        initChart() {
            this.chart = echarts.init(document.getElementById(this.id))
            this.setOptions()
        },
        setOptions() {
            this.chart.setOption(this.options)
        }
    }
}
</script>
